Measurement of hard double-parton interactions in W(→lν)+ 2 jet events at s√=7 TeV with the ATLAS detector

doi:10.1088/1367-2630/15/3/033038

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/32071

Título:	Measurement of hard double-parton interactions in W(→lν)+ 2 jet events at s√=7 TeV with the ATLAS detector
Autor(es):	Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration
Data:	2013
Editora:	IOP Publishing
Revista:	New Journal of Physics
Citação:	Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., . . . Collaboration, A. (2013). Measurement of hard double-parton interactions in W(-> lv) plus 2-jet events at root s=7 TeV with the ATLAS detector. [Article]. New Journal of Physics, 15. doi: 10.1088/1367-2630/15/3/033038
Resumo(s):	The production of W bosons in association with two jets in proton–proton collisions at a centre-of-mass energy of √ s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb−1 , collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f (D) DP , has been measured through the pT balance between the two jets and amounts to f (D) DP = 0.08 ± 0.01 (stat.) ± 0.02 (sys.) for jets with transverse momentum pT > 20 GeV and rapidity \|y\| < 2.8. This corresponds to a measurement of the effective area parameter for hard double-parton interactions of σeff = 15 ± 3 (stat.) +5 −3 (sys.) mb.
Tipo:	Artigo
URI:	https://hdl.handle.net/1822/32071
DOI:	10.1088/1367-2630/15/3/033038
ISSN:	1367-2630
Versão da editora:	http://iopscience.iop.org/1367-2630/15/3/033038/
Arbitragem científica:	yes
Acesso:	Acesso aberto
Aparece nas coleções:	LIP - Artigos/papers